KurzfassungAbstractOntologies are used to formally describe domains of interest.

As domains change over time, the ontologies have to be updated
accordingly. We advocate the introduction of an Ontology Update Language
that captures frequent domain changes and hence facilitates regular
updates to be made in ontologies. We thoroughly discuss the general
design choices for defining such a language and a corresponding update
framework. Moreover, we propose a concrete language proposal based on

SPARQL Update and provide a reference implementation of the framework.